/*
 * Copyright:  2018 smarabbit studio.
 *
 *  Licensed under the Confluent Community License; you may not use this file
 *  except in compliance with the License.  You may obtain a copy of the License at
 *
 *  http://www.confluent.io/confluent-community-license
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 *  WARRANTIES OF ANY KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations under the License.
 *
 *  @作   者： 黄开晖 (117227773@qq.com)
 *  @日   期:  2019年1月7日
 */

package com.massyframework.beanskin.springboot.beancontext;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;

import org.springframework.context.ApplicationContextInitializer;
import org.springframework.web.context.ConfigurableWebApplicationContext;
import org.springframework.web.context.support.AbstractRefreshableWebApplicationContext;

import com.massyframework.beanskin.assembly.Assembly;
import com.massyframework.beanskin.service.ServiceRepository;

/**
 * Web应用上下文工厂
 */
public final class WebApplicationContextFactory
		extends AbstractApplicationContextFactory<ConfigurableWebApplicationContext> {
	
	/**
	 * 构造方法
	 */
	public WebApplicationContextFactory() {
	}

	/**
	 * 根据<code>assembly</code>创建Spring 应用程序上下文
	 *
	 * @param assembly    {@link ServiceExportableModule}, 装配件
	 * @param initializer {@link ApplicationContextInitializer}, 应用程序上下文初始化器
	 * @return {@link AbstractRefreshableWebApplicationContext}
	 */
	@Override
	public ConfigurableWebApplicationContext createApplicationContext(Assembly assembly,
			ApplicationContextInitializer<ConfigurableWebApplicationContext> initializer) throws ServletException {
		
		ServiceRepository serviceRepository = ServiceRepository.retrieveFrom(assembly);
		ServletContext servletContext = 
				new DelegeteServletContext(serviceRepository.getService(ServletContext.class),
						assembly);
		ServletApplicationLauncher launcher =
				new ServletApplicationLauncher(assembly, initializer);
		
		launcher.onStartup(servletContext);
		return (ConfigurableWebApplicationContext)launcher.getExistingRootWebApplicationContext(servletContext);				
	}

}
